Shield polluted soil treatment device and use method thereof

Abstract

The invention provides a shield contaminated soil treatment device and a using method thereof, the shield contaminated soil treatment device comprises a stirring shell, a driving shaft and a grinding part arranged on the driving shaft in a linkage and sleeving mode, the grinding part divides the interior of the stirring shell into a grinding cavity and a stirring cavity which are distributed up and down, and a plurality of liquid pumping holes corresponding to the grinding cavity are formed in the side wall of the driving shaft in a penetrating mode; the stirring assembly is arranged in the stirring cavity, the stirring assembly comprises a stirring part which is in linkage with the driving shaft in a sleeving mode and a linkage assembly which is connected with the grinding part and the stirring part, the stirring part and the driving shaft are sequentially communicated to form a liquid pumping channel which is connected with the stirring cavity and the liquid pumping hole, and a first-stage one-way valve part is arranged in the stirring part in a spaced mode; a second-stage one-way valve located below the liquid pumping hole is arranged in the driving shaft in a spaced mode, and the first-stage one-way valve and the second-stage one-way valve divide the liquid pumping channel into a first liquid pumping area, a second liquid pumping area and a third liquid pumping area from bottom to top. The solid medicine dissolving sufficiency can be improved, and the medicine effect is prevented from being affected by wrong medicine proportioning.

Description

Technical Field

[0001] The invention relates to the field of shield contaminated soil disposal devices, and in particular to a shield contaminated soil disposal device and a use method thereof. Background Art

[0002] Shield contaminated soil is the flowing slag produced by the shield machine during the excavation process of subways, tunnels, etc. Shield contaminated soil contains foaming agents and high-molecular polymers. If it enters the disposal site without environmental protection treatment, the foaming agents it contains will have adverse effects on the microorganisms in the water once they enter the water body. In addition, since shield contaminated soil contains surfactants and has high fluidity, if it is directly used for mine landfill or large-scale accumulation, it may cause potential geological hazards. Therefore, for the treatment of shield contaminated soil, it is necessary to mix special treatment drugs with water and spray them into the shield contaminated soil to treat the pollutants.

[0003] At present, there is a prior application with application number CN113548785A, entitled A treatment system for shield mud and its separation method, which adds PAM agent into a three-chamber dosing unit for dissolution and stirring, and then fully mixes and reacts the PAM agent with the shield contaminated soil slurry in a centrifugal device.

[0004] However, the above-mentioned prior application only performs a simple stirring treatment on the agent through a stirring blade and then mixes it with the muddy shield contaminated soil for reaction, while the agents used for the treatment of shield contaminated soil include not only powdered and liquid drugs, but also granular and block drugs (such as calcium chloride, which can be used to improve soil fertility and as a soil solidifier). Therefore, simple stirring treatment cannot make the granular or block solid drugs fully compatible with the liquid drug, which leads to uneven mixing of the prepared agent and the shield contaminated soil, reduced treatment effect of the agent on the shield contaminated soil, and increased treatment cost of the shield contaminated soil.

[0005] The purpose of the present invention is to design a shield contaminated soil disposal device and a method for using the device in view of the problems existing in the above-mentioned prior art. Summary of the invention

[0006] The present invention provides a shield contaminated soil disposal device and a use method thereof, which can effectively solve the above problems.

[0007] The present invention is achieved in that:

[0008] A shield contaminated soil disposal device, comprising: a mixing mechanism and a liquid discharge mechanism, wherein the mixing mechanism comprises:

[0009] A stirring shell is provided with a driving shaft driven by a rotary driving device to rotate forward or reversely, and a grinding piece sleeved on the driving shaft in a linkage manner. A gap between the circumferential side wall of the grinding piece and the inner wall of the stirring shell is provided to form a grinding gap and divide the interior of the stirring shell into a grinding chamber and a stirring chamber distributed up and down. A plurality of pump holes corresponding to the grinding chamber are penetrated through the side wall of the driving shaft. A feed port and a discharge port respectively connected to the grinding chamber and the stirring chamber are penetrated through the side wall of the stirring shell, and the discharge port is connected to the liquid discharge mechanism.

[0010] A stirring assembly is arranged in the stirring chamber, the stirring assembly comprises a stirring member which is linked and sleeved with the driving shaft, and a linkage assembly which connects the grinding member and the stirring member, the stirring member and the driving shaft are connected in sequence to form a pump liquid channel which connects the stirring chamber and the pump liquid hole, a primary one-way valve member is arranged in the stirring member, a secondary one-way valve member is arranged in the driving shaft and is located below the pump liquid hole, the primary one-way valve member and the secondary one-way valve member divide the pump liquid channel from bottom to top into a first pump liquid area, a second pump liquid area, and a third pump liquid area; when the grinding member is driven by the driving shaft to rotate forward or reverse, the stirring member is driven to descend or ascend through the linkage assembly, when the stirring member descends, the negative pressure of the second pump liquid area opens the primary one-way valve member and sucks the liquid in the stirring chamber through the first pump liquid area, when the stirring member rises, the second pump liquid area is pressurized to open the secondary one-way valve member and squeeze the sucked liquid upward to the third pump liquid area and spray it out of the top of the grinding member through a plurality of the pump liquid holes.

[0011] Furthermore, the grinding member is configured to be in the shape of a cover with an opening facing downward and a top portion configured to be a guide portion whose height gradually decreases from the center to the periphery, and an outer edge of the guide portion extends downward to form a grinding portion with a gap with an inner wall of the stirring shell to form the grinding gap, and the stirring member includes a stirring shaft that is interlocked with the driving shaft and a plurality of layers of stirring rods that are connected to the side wall of the stirring shaft and extend outward from top to bottom, and the stirring rods of the lowest layer are sequentially connected to the stirring shaft and the driving shaft to form a pump liquid channel connecting the stirring chamber and the pump liquid hole.

[0012] Furthermore, the linkage assembly includes a gear ring whose side wall is connected to the grinding part, a plurality of linkage gears arranged on the inner side of the gear ring and meshing with the inner teeth of the gear ring, a plurality of screw rods whose lower ends are respectively rotatably connected to the bottom wall of the stirring chamber and whose upper ends are respectively connected to a plurality of the linkage gears, and a lifting member whose upper and lower limit sleeves are connected to the stirring shaft and whose ends are respectively threadedly sleeved on the outer walls of the plurality of screw rods; when the grinding member rotates forward or reversely, it drives the gear ring to rotate forward or reversely, thereby driving the plurality of the linkage gears and the screw rods to rotate forward or reversely, and then drives the lifting member to descend or ascend, and then drives the stirring shaft to descend or ascend.

[0013] Furthermore, the first-level one-way valve component and the second-level one-way valve component have the same structure, and the first-level one-way valve component includes a sealing ring laterally spaced in the stirring shaft, a sealing plug arranged at the top of the sealing ring and blocking the inner ring opening of the sealing ring, and a plurality of springs connected between the sealing plug and the top of the sealing ring; when the stirring shaft descends, the second pump liquid area is under negative pressure, and the sealing plug of the first-level one-way valve component is pushed up and separated from the inner ring opening of the sealing ring by the pressure difference between the second pump liquid area and the first pump liquid area; when the stirring shaft rises, the second pump liquid area is pressurized, and the sealing plug of the second-level one-way valve is pushed up and separated from the inner ring opening of the sealing ring by the pressure difference between the second pump liquid area and the third pump liquid area.

[0014] Furthermore, the upper end of the stirring shaft is sleeved on the outer wall of the lower end of the driving shaft, and a limit groove and a limit ridge which are embedded in each other and slide relatively up and down are respectively provided between the inner wall of the stirring shaft and the outer wall of the driving shaft. The upper end of the limit groove is closed to limit the limit ridge from sliding up and detaching.

[0015] Furthermore, several of the pump liquid holes are located on the side wall of the upper end of the driving shaft, the rotating drive device is arranged in the middle of the top of the stirring shell and the driving end is provided with a fixing ring connected to the upper end of the driving shaft, and several reinforcing rods arranged in annular intervals are connected between the fixing ring and the middle of the guide part.

[0016] Furthermore, the outer ends of several of the pump holes are slender and their lengths extend circumferentially along the drive shaft, the inner diameters of the pump holes gradually decrease from the inner end to the outer end and the inner end is higher than the outer end; the liquid is sprayed out through several of the pump holes in a blade-like shape that is inclined downward and outward.

[0017] Furthermore, several of the pump liquid holes are located on the side wall of the upper end of the driving shaft, the rotary drive device is arranged in the middle of the top of the stirring shell and the driving end is provided with a fixing ring connected to the upper end of the driving shaft, and several reinforcing members arranged at annular intervals are connected between the fixing ring and the middle of the guide portion, and several of the reinforcing members are spirally arranged from top to bottom along the reversing direction of the driving shaft, and several of the reinforcing members are recessed on one side close to the driving shaft and provided with a guide groove, and a guide port is penetrated on the lower end of the guide groove close to the spiral direction of the reinforcement; several of the guide grooves are used to receive the liquid sprayed from several of the pump liquid holes in a blade-like shape that is inclined downward and outward and then accelerate it in a spiral downward.

[0018] Furthermore, it also includes a conveying mechanism, which includes a conveyor belt driven by a conveying drive device and used to convey shield contaminated soil, the liquid discharge mechanism includes a spray shell arranged above the conveyor belt, a discharge pipe connecting the inside of the spray shell and the discharge port, a water pump device is arranged in the discharge pipe, the spray shell is hollow and has a plurality of spray holes corresponding to the top of the conveyor belt through the bottom, a plurality of stirring columns extending vertically and arranged laterally at intervals are rotatably penetrated through the bottom of the spray shell, a plurality of stirring gears respectively sleeved on the stirring columns and meshed in sequence are rotatably arranged in the spray shell, the lower ends of the plurality of stirring columns extend downward to the conveyor belt and are all fixed with a plurality of disturbance rods extending outward, a turbine corresponding to the discharge port of the discharge pipe is sleeved on the stirring column close to the discharge pipe; the liquid entering the discharge pipe impacts the turbine and drives the plurality of stirring gears and stirring columns to rotate, thereby driving the plurality of disturbance rods to rotate.

[0019] The method for using the shield contaminated soil disposal device as described above comprises the following steps:

[0020] S1, the medicine including liquid medicine and solid medicine is fed into the grinding chamber through the feed port, and the rotary drive device drives the drive shaft to rotate forward or reverse, thereby driving the grinding element to rotate forward or reverse, and the grinding element drives the stirring element to descend or ascend through the linkage assembly, and the liquid medicine falls into the stirring chamber through the grinding gap under the action of gravity, and the solid medicine falls into the stirring chamber after being ground through the grinding gap;

[0021] S2, after the liquid medicine and the solid medicine fall into the stirring chamber, they are stirred and mixed by the stirring element rotating and rising and falling to form a liquid medicine. When the stirring element descends, the negative pressure of the second pump liquid area opens the first-level one-way valve element and sucks the liquid medicine in the stirring chamber through the first pump liquid area. When the stirring element rises, the second pump liquid area is pressurized and opens the second-level one-way valve element to squeeze the sucked liquid medicine upward to the third pump liquid area and spray it out from the top of the grinding element through a plurality of pump liquid holes to wash the solid medicine remaining on the top of the grinding element;

[0022] S3, after the stirring element rotates and rises and falls to stir and mix, the discharge port is opened to discharge the liquid agent into the shield contaminated soil through the liquid discharge mechanism.

[0023] The beneficial effects of the present invention are:

[0024] 1. While the grinding element is rotating forward or reversely for grinding, the linkage assembly drives the stirring assembly to descend or ascend for stirring, thereby improving the efficiency of the stirring assembly in stirring and mixing fine granular solid medicine and liquid medicine in the stirring chamber; and, by adding a pump liquid channel, a primary one-way valve component, and a secondary one-way valve component, when the stirring element descends, the negative pressure of the second pump liquid area opens the primary one-way valve component and sucks the liquid in the stirring chamber through the first pump liquid area. When the stirring element rises, the second pump liquid area is pressurized and opens the secondary one-way valve component and squeezes the sucked liquid upward to the third pump liquid area and sprays it out of the top of the grinding element through a plurality of pump liquid holes, thereby flushing the solid medicine remaining on the top of the grinding element into the grinding gap. , which can avoid excessive residue of solid drugs that cannot fall, improve the adequacy of solid drug dissolution, avoid the influence of wrong drug ratio on drug efficacy, and increase the speed of solid drugs entering the grinding gap, and dissolve part of solid drugs in the flushing process, thereby improving the grinding efficiency and dissolution efficiency of solid drugs. Moreover, in the process of flushing the top of the grinding element with the pumped liquid after several pump holes pump liquid, the stirring element descends to the second pumping area to re-absorb liquid, so that the liquid absorbed by the second pumping area is the liquid in the lower part of the stirring chamber, which avoids the solid drugs that have just been ground in the grinding gap and fall down being sucked by the second pumping area and then pumped back to the grinding chamber for repeated grinding, thereby ensuring the grinding feeding efficiency and stirring and mixing efficiency.

[0025] 2. By setting the guide part, the medicine entering the grinding chamber can be tilted downward and outwardly guided to the grinding gap. Driven by the flow of the medicine liquid brought by the medicine, the amount of solid medicine residue on the top of the grinding piece can be reduced. At the same time, the medicine liquid pumped by the pump liquid channel through a plurality of pump liquid holes can be tilted downward and outwardly guided to the grinding gap, thereby increasing the flow rate of the pumped medicine liquid and improving the flushing effect of the solid medicine residual on the top of the grinding piece; and, by using the lowest stirring rod as the entrance of the pump liquid channel, it can be further ensured that the liquid re-absorbed by the second pump liquid area when the stirring shaft descends is the liquid in the lower part of the stirring chamber, further avoiding the falling solid medicine from being pumped back to the grinding chamber for repeated grinding, and can increase the hydraulic pressure of the first pump liquid area, thereby improving the pump liquid stability of the pump liquid channel.

[0026] 3. Through the setting of sealing plugs, sealing rings and springs, and in coordination with the pressure change in the second pump liquid area when the stirring shaft is lifted up and down, one-way conduction between the first pump liquid area and the second pump liquid area, and between the second pump liquid area and the third pump liquid area is achieved. The opening and closing of the primary one-way valve and the secondary one-way valve can be controlled without additional power, which reduces the pump liquid cost, simplifies subsequent cleaning and maintenance, and has low repair and replacement costs. The opening and closing of the sealing plug is closely linked with the lifting and lowering of the stirring shaft, with a low failure rate, which can improve the pump liquid efficiency and pump liquid stability of the pump liquid channel.

[0027] 4. By setting the outer end of the pump hole to be slender, and setting the pump hole to be larger at the inner end and smaller at the outer end, and higher at the inner end and lower at the outer end, the liquid pumped by the pump hole is pressurized and ejected downward and outward in a blade-like shape, thereby increasing the coverage area of ​​the liquid pumped by the pump hole, thereby increasing the flushing area and flushing speed of the guide part by the pumped liquid, improving the flushing effect, and reducing the probability of residual solid matter on the guide part. In addition, the design of higher inner end and lower outer end can further prevent the liquid medicine or solid medicine in the grinding chamber from splashing into the pump hole, thereby avoiding clogging of the slender outer end pump hole.

[0028] 5. On the basis of improving the connection strength between the fixing ring and the grinding part by setting up a number of reinforcement parts to improve the stability of the grinding part, by adding a spiral guide groove, the liquid sprayed from the several pump holes is accelerated by the guide groove and then rushed out through the guide port to spread and flush the guide part, which further improves the coverage area and flow rate of the liquid pumped by the several pump holes after being pumped out, and further improves the flushing area and flushing speed of the guide part by the pumped liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of embodiment 1.

[0030] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the mixing mechanism of the first embodiment.

[0031] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0032] Figure 4 It is a schematic diagram of the partial structure of the driving shaft and the stirring member of the first embodiment with only the stirring rod at the bottom layer retained.

[0033] Figure 5 It is a schematic diagram of the cross-sectional partial structure of the driving shaft and the stirring shaft of Example 1.

[0034] Figure 6 It is a schematic cross-sectional structure diagram of the spray shell of Example 1.

[0035] Figure 7 It is a partial cross-sectional structural schematic diagram of the mixing mechanism of the second embodiment.

[0036] Figure 8 for Figure 7 A local enlarged schematic diagram of point B in the middle.

[0037] Fig. 9 It is a schematic diagram of the cross-sectional partial structure of the driving end, the fixing ring and the driving shaft of the second embodiment.

[0038] Fig.10 This is a schematic diagram of the structure of several reinforcement members in Example 2.

[0039] Fig.11 Fig.10 Schematic diagram of the structure of a reinforcement member. DETAILED DESCRIPTION

[0040] Embodiment 1

[0041] Reference Figure 1-6 As shown, a shield contaminated soil disposal device includes: a mixing mechanism and a liquid discharge mechanism 8, wherein the mixing mechanism includes:

[0042] A stirring shell 1 is provided with a driving shaft 21 driven by a rotary driving device 2 to rotate forward or reversely, and a grinding piece 3 linked to the driving shaft 21. A gap between the circumferential side wall of the grinding piece 3 and the inner wall of the stirring shell 1 forms a grinding gap and divides the inside of the stirring shell 1 into a grinding chamber 11 and a stirring chamber 12 distributed up and down. Specifically, the width of the grinding gap is about one millimeter. A plurality of pump holes 211 corresponding to the grinding chamber 11 are penetrated through the side wall of the driving shaft 21. A feed port 13 and a discharge port 14 respectively connected to the grinding chamber 11 and the stirring chamber 12 are penetrated through the side wall of the stirring shell 1. The discharge port 14 is connected to the liquid discharge mechanism 8. Specifically, a heating interlayer filled with a heating medium can be provided in the side wall of the stirring shell 1. The heating medium can be hot water, steam, etc., so as to heat the stirring shell 1, improve the dissolution efficiency of solid drugs, and improve the grinding efficiency and stirring efficiency. The feed port 13 and the discharge port 14 are respectively controlled to open and close by corresponding valves.

[0043] A stirring assembly 4 is arranged in the stirring chamber 12, and the stirring assembly 4 includes a stirring member that is linked to the drive shaft 21, and a linkage assembly 43 that connects the grinding member 3 and the stirring member. The stirring member and the drive shaft 21 are sequentially connected to form a pump liquid channel 5 that connects the stirring chamber 12 and the pump liquid hole 211. A primary one-way valve member 6 is provided in the stirring member, and a secondary one-way valve member 7 located below the pump liquid hole 211 is provided in the drive shaft 21. The primary one-way valve member 6 and the secondary one-way valve member 7 separate the pump liquid channel 5 from bottom to top into a first pump liquid area 51 , a second pump liquid area 52, and a third pump liquid area 53; when the grinding member 3 is driven by the driving shaft 21 to rotate forward or reverse, the linkage assembly 43 drives the stirring member to descend or ascend. When the stirring member descends, the negative pressure of the second pump liquid area 52 opens the first-level one-way valve member 6 and sucks the liquid in the stirring chamber 12 through the first pump liquid area 51. When the stirring member rises, the second pump liquid area 52 increases the pressure to open the second-level one-way valve member 7 and squeezes the sucked liquid upward to the third pump liquid area 53 and sprays it out from the top of the grinding member 3 through a plurality of the pump liquid holes 211.

[0044] The above-mentioned structure is arranged so that when the grinding member 3 is grinding in the forward or reverse rotation, the stirring member 4 is driven to descend or ascend for stirring through the linkage member 43, thereby improving the efficiency of the stirring member 4 in stirring and mixing the fine granular solid medicine and the liquid medicine in the stirring chamber 12; and, by adding the pump liquid channel 5, the primary one-way valve member 6, and the secondary one-way valve member 7, when the stirring member descends, the negative pressure of the second pump liquid area 52 opens the primary one-way valve member 6 and sucks the liquid in the stirring chamber 12 through the first pump liquid area 51, and when the stirring member rises, the second pump liquid area 52 increases the pressure to open the secondary one-way valve member 7 and squeezes the sucked liquid upward to the third pump liquid area 53 and sprays it out of the top of the grinding member 3 through the plurality of pump liquid holes 211, thereby removing the residual Flushing the solid medicine on the top of the grinding element 3 to the grinding gap can avoid excessive residue of solid medicine that cannot fall down, improve the adequacy of dissolution of solid medicine, avoid the influence of wrong medicine ratio on medicine efficacy, and increase the speed of solid medicine entering the grinding gap. Part of solid medicine can be dissolved during the flushing process, thereby improving the grinding efficiency and dissolution efficiency of solid medicine. Moreover, in the process of flushing the top of the grinding element 3 with the pumped liquid after several pump holes 211 pump liquid, the stirring element descends to the second pumping area 52 to re-absorb liquid, so that the liquid absorbed by the second pumping area 52 is the liquid in the lower part of the stirring chamber 12, so that the solid medicine that has just been ground in the grinding gap and falls down is avoided to be sucked by the second pumping area 52 and then pumped back to the grinding chamber 11 for repeated grinding, thereby ensuring the grinding feeding efficiency and the stirring and mixing efficiency.

[0045] In order to reduce the residual amount of solid medicine on the top of the grinding piece 3, the grinding piece 3 is configured to be a cover with an opening facing downward and a top configured to be a guide portion 31 whose height gradually decreases from the center to the periphery, and the outer edge of the guide portion 31 extends downward to form a grinding portion 32 with a gap with the inner wall of the stirring shell 1 to form the grinding gap, and the stirring piece includes a stirring shaft 41 that is linked to the drive shaft 21 and a plurality of layers of stirring rods 42 that are connected to the side wall of the stirring shaft 41 and extend outward from top to bottom, and the stirring rods 42 of the lowest layer are connected to the stirring shaft 41 and the driving shaft 21 in sequence to form a pump liquid channel 5 connecting the stirring chamber 12 and the pump liquid hole 211. Therefore, by setting the guide part 31, the medicine entering the grinding chamber 11 can be tilted downward and outwardly guided to the grinding gap. Driven by the flow of the medicine liquid carried by the medicine, the residual solid medicine on the top of the grinding piece 3 can be reduced. At the same time, the medicine liquid pumped by the pump liquid channel 5 through the plurality of pump liquid holes 211 can be tilted downward and outwardly guided to the grinding gap, thereby increasing the flow rate of the pumped medicine liquid and improving its flushing effect on the solid medicine remaining on the top of the grinding piece 3; and, by using the lowest layer of stirring rod 42 as the entrance of the pump liquid channel 5, it can be further ensured that the liquid re-absorbed by the second pump liquid area 52 when the stirring shaft 41 descends is the liquid in the lower part of the stirring chamber 12, further avoiding the falling solid medicine from being pumped back to the grinding chamber 11 for repeated grinding, and can improve the hydraulic pressure of the first pump liquid area 51, thereby improving the pump liquid stability of the pump liquid channel 5.

[0046] In order to improve the stability of the linkage assembly 43, the linkage assembly 43 includes a gear ring 431 whose side wall is connected to the grinding part 32, a plurality of linkage gears 432 arranged on the inner side of the gear ring 431 and meshing with the inner teeth of the gear ring 431, a plurality of screw rods 433 whose lower ends are respectively rotatably connected to the bottom wall of the stirring chamber 12 and whose upper ends are respectively connected to a plurality of the linkage gears 432, and a lifting member 434 whose upper and lower limit sleeves are connected to the stirring shaft 41 and whose ends are respectively screwed and sleeved on the outer walls of the plurality of screw rods 433. Specifically, a plurality of layers of the stirring rods 42 are arranged in a circular array around the stirring shaft 41 and are located between the stirring shaft 41 and the screw rods 433, and the lifting member 434 and the stirring shaft 41 are sleeved by bearings; when the grinding part 3 rotates forward or reversely, it drives the gear ring 431 to rotate forward or reversely, thereby driving a plurality of the linkage gears 432 and the screw rods 433 to rotate forward or reversely, thereby driving the lifting member 434 to descend or ascend, and then driving the stirring shaft 41 to descend or ascend. Therefore, the coordination between the gear ring 431 and the linkage gear 432 and between the screw rod 433 and the lifting member 434 can improve the stability of the stirring shaft 41 rotating and lifting when the grinding member 3 rotates.

[0047] In order to realize the one-way opening and closing of the primary one-way valve and the secondary one-way valve, the primary one-way valve component 6 and the secondary one-way valve component 7 have the same structure. The primary one-way valve component 6 includes a sealing ring 61 arranged transversely in the stirring shaft 41, a sealing plug 62 arranged at the top of the sealing ring 61 and blocking the inner ring opening of the sealing ring 61, and a plurality of springs 63 connected between the sealing plug 62 and the top of the sealing ring 61; when the stirring shaft 41 descends, the second pump liquid area 52 is under negative pressure, and the sealing plug 62 of the primary one-way valve component 6 is pushed up and separated from the inner ring opening of the sealing ring 61 by the pressure difference between the second pump liquid area 52 and the first pump liquid area 51, and the sealing plug 62 of the secondary one-way valve component 7 is pulled by the spring 63 and The negative pressure sealing plug 62 of the second pump liquid area 52 is arranged in the inner ring mouth of the sealing ring 61, and the second pump liquid area 52 sucks the liquid in the stirring chamber 12 through the first pump liquid area 51. When the stirring shaft 41 rises, the second pump liquid area 52 is pressurized, and the sealing plug 62 of the secondary one-way valve is pushed up and separated from the inner ring mouth of the sealing ring 61 by the pressure difference between the second pump liquid area 52 and the third pump liquid area 53. The sealing plug 62 of the primary one-way valve is pulled by the spring 63 and the hydraulic sealing plug 62 of the second pump liquid area 52 is arranged in the inner ring mouth of the sealing ring 61. The secondary one-way valve component 7 squeezes the sucked liquid upward to the third pump liquid area 53 and sprays it out from the top of the grinding component 3 through a plurality of pump liquid holes 211. By setting the sealing plug 62, the sealing ring 61 and the spring 63, and cooperating with the pressure change in the second pump liquid area 52 when the stirring shaft 41 is lifted up and down, a one-way conduction between the first pump liquid area 51 and the second pump liquid area 52, and between the second pump liquid area 52 and the third pump liquid area 53 is achieved. The opening and closing of the primary one-way valve component 6 and the secondary one-way valve component 7 can be controlled without additional power, thereby reducing the pumping cost, simplifying subsequent cleaning and maintenance, and reducing the repair and replacement cost. In addition, the opening and closing of the sealing plug 62 is closely linked with the lifting and lowering of the stirring shaft 41, with a low failure rate, which can improve the pumping efficiency and pumping stability of the pump liquid channel 5.

[0048] In order to improve the lifting and lowering stability of the stirring shaft 41, the upper end of the stirring shaft 41 is sleeved on the outer wall of the lower end of the driving shaft 21, and a limit groove 411 and a limit rib 212 which are embedded and slide up and down relatively are respectively provided between the inner wall of the stirring shaft 41 and the outer wall of the driving shaft 21. The upper end of the limit groove 411 is closed to limit the limit rib 212 from sliding up and detaching.

[0049] In order to prevent the solid medicine or liquid medicine in the grinding chamber 11 from entering the third pumping area 53 through the pumping holes 211, a plurality of the pumping holes 211 are located on the side wall of the upper end of the driving shaft 21, the rotary drive device 2 is arranged at the middle of the top of the stirring shell 1, and the driving end is provided with a fixing ring 22 connected to the upper end of the driving shaft 21, and a plurality of reinforcing rods 23 arranged at annular intervals are connected between the fixing ring 22 and the middle of the guide part 31. Thus, by moving the positions of the plurality of pumping holes 211 upward to prevent the solid medicine or liquid medicine in the grinding chamber 11 from entering the third pumping area 53 through the pumping holes 211, the falling height of the liquid pumped by the pumping holes 211 is increased, and its flow speed is increased. In addition, by providing the plurality of reinforcing rods 23, the installation stability of the grinding member 3 is improved, and its service life is increased.

[0050] In order to improve the mixing efficiency of the medicine formed by the mixture of solid medicine and liquid medicine and the shield contaminated soil, the disposal device also includes a conveying mechanism 9, which includes a conveyor belt 92 driven by a conveying drive device 91 and used to convey the shield contaminated soil. Specifically, the conveying mechanism 9 is a V-shaped conveyor roller, and the conveyor belt 92 is set to a V-shaped conveyor belt 92 with an upward opening in the cross section, so that the top of the transmission belt has a accommodating groove for accommodating the flowing shield contaminated soil, and the liquid discharge mechanism 8 includes a spray shell 81 arranged above the conveyor belt 92, and a drainage pipe 82 connecting the interior of the spray shell 81 and the discharge port 14, and a water pump device is arranged in the drainage pipe 82. The spray shell 81 is hollow and has a plurality of corresponding The spray hole 811 at the top of the conveyor belt 92, the bottom of the spray shell 81 is rotatably penetrated by a plurality of stirring columns 813 extending vertically and arranged at intervals laterally, the spray shell 81 is rotatably provided with a plurality of stirring gears 812 respectively sleeved on the stirring columns 813 and meshed in sequence, the lower ends of the plurality of stirring columns 813 extend downward to the conveyor belt 92 and are each fixed with a plurality of disturbance rods 814 extending outward, the stirring column 813 near the drain pipe 82 is sleeved with a turbine 815 corresponding to the discharge port of the drain pipe 82; the liquid entering the drain pipe 82 impacts the turbine 815 and drives the plurality of stirring gears 812 and the stirring columns 813 to rotate, thereby driving the plurality of disturbance rods 814 to rotate.

[0051] The method for using the shield contaminated soil disposal device as described above comprises the following steps:

[0052] S1, the medicine including liquid medicine and solid medicine is input into the grinding chamber 11 through the feed port 13, and the rotary drive device 2 drives the drive shaft 21 to rotate forward or reverse, and then drives the grinding member 3 to rotate forward or reverse, and the grinding member 3 drives the stirring member to descend or ascend through the linkage assembly 43. Specifically, when the grinding member 3 rotates forward or reversely, it drives the gear ring 431 to rotate, thereby driving the plurality of linkage gears 432 and the screw rod 433 to rotate forward or reversely, and then drives the lifting member 434 to descend or ascend, and then drives the stirring shaft 41 to descend or ascend, and the liquid medicine falls into the stirring chamber 12 through the grinding gap under the action of gravity and the diversion action of the guide part 31, and the solid medicine enters the grinding gap under the action of the liquid medicine, gravity and the diversion action of the guide part 31, and the solid medicine is ground into fine particles through the grinding gap and falls into the stirring chamber 12;

[0053] S2, the liquid medicine and the solid medicine in fine granules fall into the stirring chamber 12, and are rotated and lifted by a plurality of stirring rods 42 to stir and mix to form a liquid medicine. When the stirring shaft 41 descends, the second pump liquid area 52 is under negative pressure, and the sealing plug 62 of the first-level one-way valve component 6 is pushed up and separated from the inner ring opening of the sealing ring 61 by the pressure difference between the second pump liquid area 52 and the first pump liquid area 51. The sealing plug 62 of the second-level one-way valve component 7 is pulled by the spring 63 and the negative pressure sealing plug 62 of the second pump liquid area 52 is set in the inner ring opening of the sealing ring 61, and the second pump liquid area 52 is sucked into the first pump liquid area 51. The liquid in the stirring chamber 12, when the stirring shaft 41 rises, the second pump liquid area 52 is pressurized, and the sealing plug 62 of the secondary one-way valve is pushed up and separated from the inner ring opening of the sealing ring 61 by the pressure difference between the second pump liquid area 52 and the third pump liquid area 53, and the sealing plug 62 of the primary one-way valve is pulled by the spring 63 and the hydraulic sealing plug 62 of the second pump liquid area 52 is arranged in the inner ring opening of the sealing ring 61, and the secondary one-way valve component 7 squeezes the sucked liquid upward to the third pump liquid area 53 and sprays it out from the top of the grinding member 3 through the plurality of pump liquid holes 211 to wash the solid medicine remaining on the top of the grinding member 3;

[0054] S3, after the stirring element rotates and rises and falls to stir and mix, the discharge port 14 is opened to discharge the liquid agent into the shield contaminated soil through the liquid discharge mechanism 8. Specifically, the V-shaped conveyor roller drives the V-shaped conveyor belt 92 to continuously transport the shield contaminated soil to the bottom of the spray shell 81. The liquid in the discharge pipe 82 impacts the turbine 815 and then falls into the shield contaminated soil through the spray hole 811. The turbine 815 drives the several stirring gears 812 and the stirring column 813 to rotate, and then drives the several disturbance rods 814 to rotate to stir and mix the shield contaminated soil and the liquid agent, so as to promote mixing efficiency and reaction efficiency.

[0055] Embodiment 2

[0056] refer to Figure 7-11The difference between this embodiment and the first embodiment is that:

[0057] In order to increase the coverage area of ​​the liquid pumped by the plurality of pump holes 211 after being pumped out, the outer ends of the plurality of pump holes 211 are slender and the lengths are extended circumferentially along the driving shaft 21. The inner diameter of the pump hole 211 gradually decreases from the inner end to the outer end and the inner end is higher than the outer end. The liquid is sprayed out through the plurality of pump holes 211 in a blade-like shape that is inclined downward and outward. Thus, by setting the outer end of the pump hole 211 to be slender, and setting the pump hole 211 to be larger at the inner end and smaller at the outer end, and higher at the inner end and lower at the outer end, the liquid pumped by the pump hole 211 is pressurized and ejected downward and outward in a blade-like shape, thereby increasing the coverage area of ​​the liquid pumped by the pump hole 211, thereby increasing the flushing area and flushing speed of the guide part 31 by the pumped liquid, improving the flushing effect, and reducing the probability of solid matter remaining on the guide part 31. In addition, the design of higher inner end and lower outer end can further prevent the liquid medicine or solid medicine in the grinding chamber 11 from splashing into the pump hole 211, and avoid clogging of the slender outer end of the pump hole 211.

[0058] In order to increase the flow rate of the liquid pumped by the plurality of pump holes 211 after being pumped out, the plurality of pump holes 211 are located on the side wall of the upper end of the driving shaft 21, the rotating driving device 2 is arranged at the middle of the top of the stirring shell 1 and the driving end is provided with a fixing ring 22 connected to the upper end of the driving shaft 21, and a plurality of reinforcing members 24 arranged at annular intervals are connected between the fixing ring 22 and the middle of the guide portion 31, and the plurality of reinforcing members 24 are spirally arranged from top to bottom along the reverse direction of the driving shaft 21, and the plurality of reinforcing members 24 are close to the reinforcing members 24. A guide groove 241 is recessed on one side of the driving shaft 21, and a guide port 242 is penetrated on the lower end of the guide groove 241 near the spiral direction of the reinforcement 24; a plurality of the guide grooves 241 are used to receive liquid sprayed out of a plurality of pump liquid holes 211 in a blade-like manner downward and outward, and then accelerate the liquid in a spiral downward. Specifically, under the action of the blade-like liquid's own impulse and the reverse force of the driving shaft 21, the guide grooves 241 guide the liquid spirally downward through the guide port 242 to be flushed to the top of the guide portion 31. Therefore, on the basis of improving the connection strength between the fixing ring 22 and the grinding member 3 by setting a number of reinforcement members 24 to improve the stability of the grinding member 3, by adding a spiral guide groove 241, the liquid sprayed from the several pump holes 211 is accelerated by the guide groove 241 and then rushed out through the guide port 242 to spread and flush the guide part 31, thereby further improving the coverage area and flow rate of the liquid pumped by the several pump holes 211 after being pumped out, and further improving the flushing area and flushing speed of the guide part 31 by the pumped liquid.

[0059] It should be pointed out that the implementation principle and technical effects of this embodiment are the same as those of Embodiment 1. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents in Embodiment 1.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shield contaminated soil disposal device, characterized in that: include: A mixing mechanism and a liquid discharge mechanism (8), wherein the mixing mechanism comprises: A stirring shell (1) is provided with a driving shaft (21) driven by a rotary drive device (2) to rotate forward or reversely, and a grinding piece (3) sleeved on the driving shaft (21); a gap between the circumferential side wall of the grinding piece (3) and the inner wall of the stirring shell (1) is provided to form a grinding gap and to divide the interior of the stirring shell (1) into a grinding chamber (11) and a stirring chamber (12) distributed vertically; a plurality of pump holes (211) corresponding to the grinding chamber (11) are penetrated through the side wall of the driving shaft (21); a feed port (13) and a discharge port (14) respectively connected to the grinding chamber (11) and the stirring chamber (12) are penetrated through the side wall of the stirring shell (1); and the discharge port (14) is connected to the liquid discharge mechanism (8); A stirring assembly (4) is arranged in the stirring chamber (12), the stirring assembly (4) comprising a stirring member which is linked and sleeved with the driving shaft (21), and a linkage assembly (43) which connects the grinding member (3) and the stirring member, the stirring member and the driving shaft (21) are sequentially connected to form a pumping channel (5) which connects the stirring chamber (12) and the pumping hole (211), the stirring member is provided with a primary one-way valve member (6), the driving shaft (21) is provided with a secondary one-way valve member (7) located below the pumping hole (211), the primary one-way valve member (6) and the secondary one-way valve member (7) divide the pumping channel (5) from bottom to top into a first pumping area (51), a second pumping area (52), and a third pumping area (53); when the grinding element (3) is driven by the driving shaft (21) to rotate forward or reverse, the stirring element is driven to descend or ascend through the linkage assembly (43); when the stirring element descends, the negative pressure of the second pumping area (52) opens the first check valve element (6) and sucks the liquid in the stirring chamber (12) through the first pumping area (51); when the stirring element rises, the second pumping area (52) increases the pressure to open the second check valve element (7) and squeezes the sucked liquid upward to the third pumping area (53) and sprays it out of the top of the grinding element (3) through a plurality of pumping holes (211).

2. A shield contaminated soil disposal device as claimed in claim 1, characterized in that: The grinding member (3) is configured as a cover body with an opening facing downward and a top portion configured as a guide portion (31) whose height gradually decreases from the center to the periphery. The outer edge of the guide portion (31) extends downward to form a grinding portion (32) which is provided with a gap with the inner wall of the stirring shell (1) to form the grinding gap. The stirring member comprises a stirring shaft (41) which is sleeved on the driving shaft (21) and a plurality of layers of stirring rods (42) which are connected to the side wall of the stirring shaft (41) and extend outward from top to bottom. The stirring rods (42) at the bottom layer are sequentially connected to the stirring shaft (41) and the driving shaft (21) to form a pump liquid channel (5) which connects the stirring chamber (12) and the pump liquid hole (211).

3. A shield contaminated soil disposal device as claimed in claim 2, characterized in that: The linkage assembly (43) comprises a gear ring (431) whose side wall is connected to the grinding part (32), a plurality of linkage gears (432) arranged on the inner side of the gear ring (431) and meshing with the inner teeth of the gear ring (431), a plurality of screw rods (433) whose lower ends are respectively rotatably connected to the bottom wall of the stirring chamber (12) and whose upper ends are respectively connected to the plurality of linkage gears (432), and a lifting member (434) whose upper and lower limit sleeves are respectively threadedly sleeved on the outer walls of the plurality of screw rods (433); when the grinding part (3) rotates forward or reversely, it drives the gear ring (431) to rotate forward or reversely, thereby driving the plurality of linkage gears (432) and the screw rods (433) to rotate forward or reversely, thereby driving the lifting member (434) to descend or ascend, and then driving the stirring shaft (41) to descend or ascend.

4. A shield contaminated soil disposal device as claimed in claim 2, characterized in that: The first-stage one-way valve component (6) and the second-stage one-way valve component (7) have the same structure. The first-stage one-way valve component (6) comprises a sealing ring (61) arranged transversely in the stirring shaft (41), a sealing plug (62) arranged at the top of the sealing ring (61) and blocking the inner ring opening of the sealing ring (61), and a plurality of springs (63) connected between the sealing plug (62) and the top of the sealing ring (61); when the stirring shaft (41) descends, the second pumping liquid area (52) is under negative pressure, and the sealing plug (62) of the first-stage one-way valve component (6) is pushed up and separated from the inner ring opening of the sealing ring (61) by the pressure difference between the second pumping liquid area (52) and the first pumping liquid area (51); when the stirring shaft (41) ascends, the second pumping liquid area (52) is pressurized, and the sealing plug (62) of the second-stage one-way valve is pushed up and separated from the inner ring opening of the sealing ring (61) by the pressure difference between the second pumping liquid area (52) and the third pumping liquid area (53).

5. A shield contaminated soil disposal device as claimed in claim 2, characterized in that: The upper end of the stirring shaft (41) is sleeved on the outer wall of the lower end of the driving shaft (21); a limiting groove (411) and a limiting rib (212) which are embedded in each other and slide up and down relatively are respectively provided between the inner wall of the stirring shaft (41) and the outer wall of the driving shaft (21); the upper end of the limiting groove (411) is closed and is used to limit the limiting rib (212) from sliding up and disengaging.

6. A shield contaminated soil disposal device as claimed in claim 2, characterized in that: The plurality of pump holes (211) are located on the side wall of the upper end of the drive shaft (21); the rotary drive device (2) is arranged at the middle of the top of the stirring shell (1); and a fixing ring (22) connected to the upper end of the drive shaft (21) is provided at the driving end; and a plurality of reinforcing rods (23) arranged at intervals in an annular manner are connected between the fixing ring (22) and the middle of the guide portion (31).

7. A shield contaminated soil disposal device as claimed in claim 2, characterized in that: The outer ends of the plurality of pump holes (211) are slender and their lengths are arranged to extend along the circumference of the drive shaft (21); the inner diameter of the pump holes (211) gradually decreases from the inner end to the outer end, and the inner end is higher than the outer end; liquid is sprayed out through the plurality of pump holes (211) in a blade shape that is inclined downward and outward.

8. A shield contaminated soil disposal device as claimed in claim 7, characterized in that: A plurality of the pumping holes (211) are located on the side wall of the upper end of the driving shaft (21); the rotary driving device (2) is arranged at the middle of the top of the stirring shell (1) and the driving end is provided with a fixing ring (22) connected to the upper end of the driving shaft (21); a plurality of reinforcing members (24) arranged at annular intervals are connected between the fixing ring (22) and the middle of the guide portion (31); the plurality of reinforcing members (24) are arranged in a spiral from top to bottom along the reverse direction of the driving shaft (21); a plurality of reinforcing members (24) are arranged in a concave manner on one side close to the driving shaft (21); a guide port (242) is penetrated at the lower end of the guide groove (241) on the side close to the spiral direction of the reinforcing member (24); the plurality of guide grooves (241) are used to receive the liquid sprayed out of the plurality of pumping holes (211) in a blade-like manner downward and outward, and then accelerate the liquid in a spiral downward.

9. The shield contaminated soil disposal device according to claim 1, characterized in that: The invention also comprises a conveying mechanism (9), wherein the conveying mechanism (9) comprises a conveyor belt (92) driven by a conveying driving device (91) and used for conveying shield contaminated soil, the liquid discharge mechanism (8) comprises a spray shell (81) arranged above the conveyor belt (92), a liquid discharge pipe (82) connecting the inside of the spray shell (81) and the discharge port (14), a water pump device is arranged in the liquid discharge pipe (82), the spray shell (81) is hollow and has a plurality of spray holes (811) corresponding to the top of the conveyor belt (92) penetrating the bottom, and a plurality of stirring columns (811) extending vertically and arranged at intervals in a rotatable manner penetrating the bottom of the spray shell (81). 13), a plurality of stirring gears (812) are rotatably mounted on the stirring columns (813) and meshed in sequence, the lower ends of the stirring columns (813) extend downward to the conveyor belt (92) and are fixed with a plurality of disturbance rods (814) extending outward, and a turbine (815) corresponding to the discharge port of the discharge pipe (82) is mounted on the stirring column (813) near the discharge pipe (82); the liquid entering the discharge pipe (82) impacts the turbine (815) and drives the plurality of stirring gears (812) and the stirring columns (813) to rotate, thereby driving the plurality of disturbance rods (814) to rotate.

10. A method for using a shield contaminated soil disposal device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, a medicine including a medicine liquid and a solid medicine is fed into a grinding chamber (11) through a feed port (13), and a rotary drive device (2) drives a drive shaft (21) to rotate forward or reverse, thereby driving a grinding member (3) to rotate forward or reverse, and the grinding member (3) drives a stirring member to descend or ascend through a linkage assembly (43), and the medicine liquid falls into the stirring chamber (12) through a grinding gap under the action of gravity, and the solid medicine falls into the stirring chamber (12) after being ground through the grinding gap; S2, after the liquid medicine and the solid medicine fall into the stirring chamber (12), they are stirred and mixed by the stirring element rotating and rising and falling to form a liquid medicine. When the stirring element descends, the negative pressure of the second pumping liquid area (52) opens the first-level check valve element (6) and sucks the liquid medicine in the stirring chamber (12) through the first pumping liquid area (51). When the stirring element rises, the second pumping liquid area (52) increases the pressure and opens the second-level check valve element (7) to squeeze the sucked liquid medicine upward to the third pumping liquid area (53) and spray it out from the top of the grinding element (3) through a plurality of pumping liquid holes (211) to wash away the solid medicine remaining on the top of the grinding element (3); S3, after the stirring element rotates and rises and falls to stir and mix, the discharge port (14) is opened to discharge the liquid agent into the shield contaminated soil through the liquid discharge mechanism (8).

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